| Current File : //proc/self/root/usr/include/linux/v4l2-subdev.h |
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* V4L2 subdev userspace API
*
* Copyright (C) 2010 Nokia Corporation
*
* Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* Sakari Ailus <sakari.ailus@iki.fi>
*/
#ifndef __LINUX_V4L2_SUBDEV_H
#define __LINUX_V4L2_SUBDEV_H
#include <linux/const.h>
#include <linux/ioctl.h>
#include <linux/types.h>
#include <linux/v4l2-common.h>
#include <linux/v4l2-mediabus.h>
/**
* enum v4l2_subdev_format_whence - Media bus format type
* @V4L2_SUBDEV_FORMAT_TRY: try format, for negotiation only
* @V4L2_SUBDEV_FORMAT_ACTIVE: active format, applied to the device
*/
enum v4l2_subdev_format_whence {
V4L2_SUBDEV_FORMAT_TRY = 0,
V4L2_SUBDEV_FORMAT_ACTIVE = 1,
};
/**
* struct v4l2_subdev_format - Pad-level media bus format
* @which: format type (from enum v4l2_subdev_format_whence)
* @pad: pad number, as reported by the media API
* @format: media bus format (format code and frame size)
* @stream: stream number, defined in subdev routing
* @reserved: drivers and applications must zero this array
*/
struct v4l2_subdev_format {
__u32 which;
__u32 pad;
struct v4l2_mbus_framefmt format;
__u32 stream;
__u32 reserved[7];
};
/**
* struct v4l2_subdev_crop - Pad-level crop settings
* @which: format type (from enum v4l2_subdev_format_whence)
* @pad: pad number, as reported by the media API
* @rect: pad crop rectangle boundaries
* @stream: stream number, defined in subdev routing
* @reserved: drivers and applications must zero this array
*/
struct v4l2_subdev_crop {
__u32 which;
__u32 pad;
struct v4l2_rect rect;
__u32 stream;
__u32 reserved[7];
};
#define V4L2_SUBDEV_MBUS_CODE_CSC_COLORSPACE 0x00000001
#define V4L2_SUBDEV_MBUS_CODE_CSC_XFER_FUNC 0x00000002
#define V4L2_SUBDEV_MBUS_CODE_CSC_YCBCR_ENC 0x00000004
#define V4L2_SUBDEV_MBUS_CODE_CSC_HSV_ENC V4L2_SUBDEV_MBUS_CODE_CSC_YCBCR_ENC
#define V4L2_SUBDEV_MBUS_CODE_CSC_QUANTIZATION 0x00000008
/**
* struct v4l2_subdev_mbus_code_enum - Media bus format enumeration
* @pad: pad number, as reported by the media API
* @index: format index during enumeration
* @code: format code (MEDIA_BUS_FMT_ definitions)
* @which: format type (from enum v4l2_subdev_format_whence)
* @flags: flags set by the driver, (V4L2_SUBDEV_MBUS_CODE_*)
* @stream: stream number, defined in subdev routing
* @reserved: drivers and applications must zero this array
*/
struct v4l2_subdev_mbus_code_enum {
__u32 pad;
__u32 index;
__u32 code;
__u32 which;
__u32 flags;
__u32 stream;
__u32 reserved[6];
};
/**
* struct v4l2_subdev_frame_size_enum - Media bus format enumeration
* @index: format index during enumeration
* @pad: pad number, as reported by the media API
* @code: format code (MEDIA_BUS_FMT_ definitions)
* @min_width: minimum frame width, in pixels
* @max_width: maximum frame width, in pixels
* @min_height: minimum frame height, in pixels
* @max_height: maximum frame height, in pixels
* @which: format type (from enum v4l2_subdev_format_whence)
* @stream: stream number, defined in subdev routing
* @reserved: drivers and applications must zero this array
*/
struct v4l2_subdev_frame_size_enum {
__u32 index;
__u32 pad;
__u32 code;
__u32 min_width;
__u32 max_width;
__u32 min_height;
__u32 max_height;
__u32 which;
__u32 stream;
__u32 reserved[7];
};
/**
* struct v4l2_subdev_frame_interval - Pad-level frame rate
* @pad: pad number, as reported by the media API
* @interval: frame interval in seconds
* @stream: stream number, defined in subdev routing
* @which: interval type (from enum v4l2_subdev_format_whence)
* @reserved: drivers and applications must zero this array
*/
struct v4l2_subdev_frame_interval {
__u32 pad;
struct v4l2_fract interval;
__u32 stream;
__u32 which;
__u32 reserved[7];
};
/**
* struct v4l2_subdev_frame_interval_enum - Frame interval enumeration
* @pad: pad number, as reported by the media API
* @index: frame interval index during enumeration
* @code: format code (MEDIA_BUS_FMT_ definitions)
* @width: frame width in pixels
* @height: frame height in pixels
* @interval: frame interval in seconds
* @which: interval type (from enum v4l2_subdev_format_whence)
* @stream: stream number, defined in subdev routing
* @reserved: drivers and applications must zero this array
*/
struct v4l2_subdev_frame_interval_enum {
__u32 index;
__u32 pad;
__u32 code;
__u32 width;
__u32 height;
struct v4l2_fract interval;
__u32 which;
__u32 stream;
__u32 reserved[7];
};
/**
* struct v4l2_subdev_selection - selection info
*
* @which: either V4L2_SUBDEV_FORMAT_ACTIVE or V4L2_SUBDEV_FORMAT_TRY
* @pad: pad number, as reported by the media API
* @target: Selection target, used to choose one of possible rectangles,
* defined in v4l2-common.h; V4L2_SEL_TGT_* .
* @flags: constraint flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.
* @r: coordinates of the selection window
* @stream: stream number, defined in subdev routing
* @reserved: for future use, set to zero for now
*
* Hardware may use multiple helper windows to process a video stream.
* The structure is used to exchange this selection areas between
* an application and a driver.
*/
struct v4l2_subdev_selection {
__u32 which;
__u32 pad;
__u32 target;
__u32 flags;
struct v4l2_rect r;
__u32 stream;
__u32 reserved[7];
};
/**
* struct v4l2_subdev_capability - subdev capabilities
* @version: the driver versioning number
* @capabilities: the subdev capabilities, see V4L2_SUBDEV_CAP_*
* @reserved: for future use, set to zero for now
*/
struct v4l2_subdev_capability {
__u32 version;
__u32 capabilities;
__u32 reserved[14];
};
/* The v4l2 sub-device video device node is registered in read-only mode. */
#define V4L2_SUBDEV_CAP_RO_SUBDEV 0x00000001
/* The v4l2 sub-device supports routing and multiplexed streams. */
#define V4L2_SUBDEV_CAP_STREAMS 0x00000002
/*
* Is the route active? An active route will start when streaming is enabled
* on a video node.
*/
#define V4L2_SUBDEV_ROUTE_FL_ACTIVE (1U << 0)
/**
* struct v4l2_subdev_route - A route inside a subdev
*
* @sink_pad: the sink pad index
* @sink_stream: the sink stream identifier
* @source_pad: the source pad index
* @source_stream: the source stream identifier
* @flags: route flags V4L2_SUBDEV_ROUTE_FL_*
* @reserved: drivers and applications must zero this array
*/
struct v4l2_subdev_route {
__u32 sink_pad;
__u32 sink_stream;
__u32 source_pad;
__u32 source_stream;
__u32 flags;
__u32 reserved[5];
};
/**
* struct v4l2_subdev_routing - Subdev routing information
*
* @which: configuration type (from enum v4l2_subdev_format_whence)
* @num_routes: the total number of routes in the routes array
* @routes: pointer to the routes array
* @reserved: drivers and applications must zero this array
*/
struct v4l2_subdev_routing {
__u32 which;
__u32 num_routes;
__u64 routes;
__u32 reserved[6];
};
/*
* The client is aware of streams. Setting this flag enables the use of 'stream'
* fields (referring to the stream number) with various ioctls. If this is not
* set (which is the default), the 'stream' fields will be forced to 0 by the
* kernel.
*/
#define V4L2_SUBDEV_CLIENT_CAP_STREAMS (1ULL << 0)
/*
* The client is aware of the struct v4l2_subdev_frame_interval which field. If
* this is not set (which is the default), the which field is forced to
* V4L2_SUBDEV_FORMAT_ACTIVE by the kernel.
*/
#define V4L2_SUBDEV_CLIENT_CAP_INTERVAL_USES_WHICH (1ULL << 1)
/**
* struct v4l2_subdev_client_capability - Capabilities of the client accessing
* the subdev
*
* @capabilities: A bitmask of V4L2_SUBDEV_CLIENT_CAP_* flags.
*/
struct v4l2_subdev_client_capability {
__u64 capabilities;
};
/* Backwards compatibility define --- to be removed */
#define v4l2_subdev_edid v4l2_edid
#define VIDIOC_SUBDEV_QUERYCAP _IOR('V', 0, struct v4l2_subdev_capability)
#define VIDIOC_SUBDEV_G_FMT _IOWR('V', 4, struct v4l2_subdev_format)
#define VIDIOC_SUBDEV_S_FMT _IOWR('V', 5, struct v4l2_subdev_format)
#define VIDIOC_SUBDEV_G_FRAME_INTERVAL _IOWR('V', 21, struct v4l2_subdev_frame_interval)
#define VIDIOC_SUBDEV_S_FRAME_INTERVAL _IOWR('V', 22, struct v4l2_subdev_frame_interval)
#define VIDIOC_SUBDEV_ENUM_MBUS_CODE _IOWR('V', 2, struct v4l2_subdev_mbus_code_enum)
#define VIDIOC_SUBDEV_ENUM_FRAME_SIZE _IOWR('V', 74, struct v4l2_subdev_frame_size_enum)
#define VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL _IOWR('V', 75, struct v4l2_subdev_frame_interval_enum)
#define VIDIOC_SUBDEV_G_CROP _IOWR('V', 59, struct v4l2_subdev_crop)
#define VIDIOC_SUBDEV_S_CROP _IOWR('V', 60, struct v4l2_subdev_crop)
#define VIDIOC_SUBDEV_G_SELECTION _IOWR('V', 61, struct v4l2_subdev_selection)
#define VIDIOC_SUBDEV_S_SELECTION _IOWR('V', 62, struct v4l2_subdev_selection)
#define VIDIOC_SUBDEV_G_ROUTING _IOWR('V', 38, struct v4l2_subdev_routing)
#define VIDIOC_SUBDEV_S_ROUTING _IOWR('V', 39, struct v4l2_subdev_routing)
#define VIDIOC_SUBDEV_G_CLIENT_CAP _IOR('V', 101, struct v4l2_subdev_client_capability)
#define VIDIOC_SUBDEV_S_CLIENT_CAP _IOWR('V', 102, struct v4l2_subdev_client_capability)
/* The following ioctls are identical to the ioctls in videodev2.h */
#define VIDIOC_SUBDEV_G_STD _IOR('V', 23, v4l2_std_id)
#define VIDIOC_SUBDEV_S_STD _IOW('V', 24, v4l2_std_id)
#define VIDIOC_SUBDEV_ENUMSTD _IOWR('V', 25, struct v4l2_standard)
#define VIDIOC_SUBDEV_G_EDID _IOWR('V', 40, struct v4l2_edid)
#define VIDIOC_SUBDEV_S_EDID _IOWR('V', 41, struct v4l2_edid)
#define VIDIOC_SUBDEV_QUERYSTD _IOR('V', 63, v4l2_std_id)
#define VIDIOC_SUBDEV_S_DV_TIMINGS _IOWR('V', 87, struct v4l2_dv_timings)
#define VIDIOC_SUBDEV_G_DV_TIMINGS _IOWR('V', 88, struct v4l2_dv_timings)
#define VIDIOC_SUBDEV_ENUM_DV_TIMINGS _IOWR('V', 98, struct v4l2_enum_dv_timings)
#define VIDIOC_SUBDEV_QUERY_DV_TIMINGS _IOR('V', 99, struct v4l2_dv_timings)
#define VIDIOC_SUBDEV_DV_TIMINGS_CAP _IOWR('V', 100, struct v4l2_dv_timings_cap)
#endif